Document Detail


Threats to internal validity in worksite health promotion program research: common problems and possible solutions.
MedLine Citation:
PMID:  10148685     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Reviews of the research on worksite health promotion programs reveal that most studies are limited in their ability to draw clear inferences about program effects because the studies employed flawed research designs and/or analyses. Conclusions are often drawn about program effectiveness with little consideration given to alternative explanations for the findings. In an effort to promote improved research, this article uses the Cook and Campbell delineation of threats to valid causal inference to illustrate how the threats can operate in worksite health promotion program research as well as how they can be examined and controlled. Researchers, even those attempting to conduct true experiments, must consider the existence of all plausible threats to validity and control or rule them out before valid causal inferences can be drawn. The theoretical and design issues involved in worksite health promotion program research are presented, followed by a discussion of threats to internal validity.
Authors:
K M Conrad; K J Conrad; J Walcott-McQuigg
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Publication Detail:
Type:  Comparative Study; Journal Article; Review    
Journal Detail:
Title:  American journal of health promotion : AJHP     Volume:  6     ISSN:  0890-1171     ISO Abbreviation:  Am J Health Promot     Publication Date:    1991 Nov-Dec
Date Detail:
Created Date:  1993-08-26     Completed Date:  1993-08-26     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  8701680     Medline TA:  Am J Health Promot     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  112-22     Citation Subset:  T    
Affiliation:
Occupational Health Nursing Program, University of Illinois at Chicago 60612.
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MeSH Terms
Descriptor/Qualifier:
Data Collection / methods
Health Promotion / methods*
Humans
Occupational Health*
Program Evaluation
Regression Analysis
Reproducibility of Results
Research Design
Selection Bias

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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